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?;\P = i <br />Page 6 <br />Permit No. COC-350000 <br />B <br />EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS <br />1. Effluent Limitations (continued) <br />d) Burden of Proof Requirement <br />The permittee has the burden of proof when requesting relief from <br />total suspended solids (TSS), total iron and/or settleable solids <br />limitations. Relie£ shall be granted only when necessary and shall <br />not be granted when the permittee has control over the discharge. <br />The permittee should endeavor to meet the primary limitations <br />whenever possible. <br />1) For rainfall. to waive TSS and coral iron limitations, it is <br />necessary to prove chat discharge occurred within 48 hours after <br />measurable precipitation has stopped. In addition, to waive <br />settleable solids limitations, it is necessary to prove that <br />discharge occurred within 48 hours after precipitation greater <br />than the 10-year, 24-hour event has stopped. <br />2) For snowmelt, [o waive TSS and to cal iron ].imitations, it is <br />necessary to prove that discharge occurred within 48 hours after <br />pond inflow has stopped. In addition, to waive settleable <br />solids limitations, it is necessary to prove chat discharge <br />occurred within 48 hours after pond inflow volume greater than <br />the 10-year, 24-hour even[ has stopped. <br />The Division shall determine the adequacy of proof. As part of <br />this determiracion, the Division shall evaluate whether the <br />permittee could have controlled the discharge in such a manner that <br />primary limitations could have been met. All manual dewatering <br />must meet TSS and total iron limitaCions. <br />2. Sto rmwater Mana ¢emenc Plan <br />The permittee shall prepare and submit two copies of a Stormwater <br />Management Plan (SWMP} co the Water Quality Control Division. The <br />plan shall be submitted within si:c months Erom the date chat <br />certification under this oe*_mic was granted co the Eacility. An <br />additional copy of the plan shall be submitted co:• <br />Colorado Department of Natural Resources <br />Mined Land Reclamation Division - Coal Mining Section <br />423 Centennial Building <br />1313 Sherman Scree[ <br />Denver, CO 80203 <br />The Division will review and approve each plan. Upon approval, the <br />plan shall be incorporated into the permitcee's certification by <br />reference. Failure co impLemenc the approved plan as described shall <br />be a violation of the permit. The plan shall remain in effect as Long <br />as the Eacility is regulated by a CDPS permit. <br />